Explanation:
The double-replacement reaction generally takes the form of AB + CD → AD + CB where A and C are positively-charged cations, while B and D are negatively-charged anions
Graphite is a polymorph of the element carbon.
The amount of heat needed would be the specific heat multiplied by the mass of the substance and the temperature difference. In this case, the mass would be 75.0–g, the specific heat would be 0.449 j/g °c, and the temperature difference would be <span>1535 -25= 1510
Then the calculation would be: </span>0.449 j/g °c * 75g * 1510°c = 50,849.25J
In calorie it would be: 50849.25J / 4.184J/cal= 12,153.26 calorie
The correct answer is Meters/second
Hello!
This question can be easily solved using the
Mole Ratio of KNO₃/KI in the balanced reaction that is shown below:
2KI + Pb(NO₃)₂ → 2KNO₃ + PbI₂
The Mole Ratio of KNO₃/KI in this reaction is
2 moles KNO₃/ 2 moles KI so we can apply the following conversion factor:
So, if 0,03 moles of KI are completely consumed,
0,03 moles of KNO₃ are formed.
Have a nice day!